DeWalt DW729KN, Original Instructions Manual

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26
ENGLIsh
Making a Trial Cut (Fig. A)
1. With the mitre latch lever 10 engaged, lock the mitre clamp lever 11 so that the blade is
positioned for a straight 0 ° cross‑cut.
2. Lower the arm until the blade almost touches the table top.
3. Place the workpiece against the front of the fence.
4. Switch on and lower the arm to allow the blade to cut a shallow groove in the
table surface.
5. Pull the blade towards you so that it cuts a vertical slot in the wooden fence and through
the workpiece.
6. Return the blade back to rest position and switch off.
7. Check that the cut is a true 90 ° in all planes and adjust if required.
Switching On and Off (Fig. A)
The on/off switch of your radial arm saw offers multiple advantages:
-
No‑volt release function:
should the power be shut off for some reason, the switch
has to be deliberately reactivated.
-
Motor overload protection device:
in case of motor overload, the power supply to
the motor will be cut off. If this happens, let the motor cool for 10 minutes.
NOTE: DW729KN has an automatic resetting overload protection.
- Braking system: after switching off, the braking system will stop the saw blade within
10 seconds.
- The switch has hold‑to‑run functions only.
- Isolating switch (DW729KN): manual rotary switch to cut OFF all power to the unit.
To switch the machine on, press the green actuator 1 in the handle 2 . When the actuator is
released the machine stops automatically.
Checking that the Blade is Perpendicular to the Table Top (Fig. AA–BB)
1. Bring the arm back to central position.
2. Place a steel square
46
against the blade body (Fig. AA).
3. If adjustment is required, proceed as follows:
a. Remove the bevel pointer disk
48
(Fig. AA) by loosening the two screws
49
.
b. Loosen the hex screw 51 .
c. Loosen the lock nuts
50
on either side of the bevel scale
23
(Fig. BB)
4. Using a hex wrench adjust the unlocked screws 44 until the blade is flat against
the square.
5. Firmly tighten all fasteners.
WARNING: It is particularly important to tighten the central hex screw.
6. Replace the bevel pointer disk 48 (Fig. AA).
Checking that the Arm is Parallel to the Table Top (Fig. A, Z)
1. Lower the blade 43 until it only just touches the fixed table top 5 .
2. Release the mitre latch lever 10 and the mitre clamp lever 11 .
3. Extend the blade forward past the fence then swing arm so that the blade skims the table
top across its width.
4. Repeat this procedure with the blade in rear position and adjust the rear bolt if required.
Mounting the Saw Blade (Fig. A, S–Y)
1. Ensure that the arm position is at 0˚ and raise the arm 13 to the upper postion (Fig. A).
2. Tilt motor as follows:
a. Unlock the lever 32 (Fig. S)
b. Pull out the bevel latch 58 (Fig. T) , tilt the motor head 33 as shown for optimum
access (Fig. U) and lock with the lever 32 (Fig. V).
3. Hold the flange 42 in place with the pin wrench 37 and turn the blade screw 41
clockwise using the 10 mm hex wrench 39 (Fig. W). Remove the blade screw 41 , external
flange
42
and the blade
43
(Fig. X, Y).
4. To assemble the new blade repeat the steps in the opposite order.
5. The head is ready for cutting
WARNING: The teeth of a new blade are very sharp and can be dangerous.
WARNING: The direction of rotation is indicated by the arrow on the motor.
WARNING:
Make sure that the washer of the arbour nut is against the outer flange.
Mounting Switch Box (Fig. R)
The switch box 26 is mounted on a bracket which must be fitted to the left‑hand side leg
using the fasteners on the bracket. The switch box also contains the electronic brake, overload
protector and an isolating switch
25
.
1. Fit the bracket in the holes in the left‑hand side leg.
2. Tighten all fasteners.
Mounting the Cable Support (Fig. P, Q)
1. Remove the cross head screw 35 .
2. Mount the cable support 36 and refit the cross head screw.
3. Remove the cable clamps 38 located on the arm and reattach holding the cable in place.
WARNING: Allow for the arm movement in horizontal and vertical direction.
Mounting Dust Shroud (Fig. N, O)
1. Fit the dust port in position back to the column base.
2. Insert 3 M8 x 16 screws and D8 washers into the dust port and base holes.
3. Tighten all with 3 M8 nuts using 13 mm socket wrench and open key spanner.
7. Align the left fence dowels with the left side holes in the fixed table top and firmly press
together (Fig. I).
8. Repeat with the right fence.
9. Align the back, left table strip
19 with the left fence dowels and firmly press together
(Fig. J). Tighten the table clamp
34
with socket wrench (Fig. K).
10. Insert a M8 x 25 screw and D8 washer into the back, left table strip and securely tighten
(Fig. L, M).
11. Repeat for back right table strip.
OPERATION
Instructions for Use
WARNING: Always observe the safety instructions and applicable regulations.
• Ensure the material to be sawn is firmly secured in place.
• Apply only a gentle pressure to the tool and do not exert side pressure on the
saw blade.
• Avoid overloading.
WARNING:
• Install the appropriate saw blade. Do not use excessively worn blades. The maximum
rotation speed of the tool must not exceed that of the saw blade.
• Do not attempt to cut excessively small pieces.
• Allow the blade to cut freely. Do not force.
• Allow the motor to reach full speed before cutting.
• Make sure all locking knobs and clamp handles are tight.
• Never run the machine without the guards in place.
• Never lift the machine by the table top.
• Always check that there is a suitable slot in the table top.
• Always refer to Figure II to check the fence position and type.
The attention of UK users is drawn to the “woodworking machines regulations 1974” and any
subsequent amendments.
Mitre Scale (Fig. C)
Check that the mitre scale 53 reads 0˚ when positioned for a vertical cut.
Adjust the pointer
52
to register 0˚ using the screw
54
.
The arm has preset positions at 45˚ left and right and at 0˚.
Bevel Scale (Fig. FF)
Check that the bevel scale 23 reads 0˚ when positioned for a vertical cut.
If required, loosen the screws 51 and adjust the pointer to 0˚.
Blade Guard Assembly (Fig. EE)
The blade guard is a multifunctional assembly which offers the following safety features:
- Front guard 3 and spring‑held rear guard 4 for full blade protection.
- Dust extraction adapter 55 .
- Adjustable finger guard 56 for use when cross‑cutting.
WARNING: Do not overtighten the studs.
8. Tighten the adjustment screws
45
.
Checking that the Crosscut Travel is Perpendicular to the Fence
(Fig. CC, DD)
1. Lock the blade in front of the fence (Fig. CC).
2. Place a square
46 on a piece of board and against the fence and just touching the blade
as shown.
3. Pull the blade towards you to check that the blade traverses parallel to the square.
4. If adjustment is required, proceed as follows:
a. Loosen the mitre latch lever 10 and release the mitre clamp lever 11 (Fig. DD).
b. Loosen the two adjustment screws
45
.
5. To adjust the arm to the left, loosen the stud on the right‑hand side of the mitre latch
lever
10
and tighten the opposite stud.
6. To adjust the arm to the right, loosen the stud on the left‑hand side of the mitre latch
lever 10 and tighten the opposite stud.
7. Proceed in small steps and check the adjustment after each step with the levers 10
and 11 engaged.
Basic Saw Cuts (Fig. GG–JJ)
WARNING:
The teeth of a new blade are very sharp and can be dangerous.
Cross-cutting (Fig. GG)
1. Set the radial arm at right angles to the fence.
2. Engage the mitre latch lever
10
in 0 ° position and tighten the mitre clamp lever
11
.
3. Lower the blade.
4. Adjust the finger guard
56
so that it just clears the workpiece.
5. If there is no slot in the table top, cut one as described above.
6. Hold the workpiece against the fence, keeping your fingers well away from the path of
the blade.